Hach ORBISPHERE K1200 Basic User Manual

Also see for ORBISPHERE 510: User manual User manual

Contents

Calibration configurationNote: This option can also be invoked by pressing the Modify button in either the Zero calibration or High leveladjustment calibration screens.1. From the Main menu, select Calibration followed by Gas sensor and then Configuration.Option DescriptionAuto-calibration Not available for this sensor.Manual-calibration When Auto-End is enabled a manual calibration will complete automatically when theparameters defined in Stop parameters are reached. Press on Configure to set themanual calibration parameters. If the calibration fails, the previous calibrationparameters remain unchanged and a warning message displayed.Hold duringcalibration orverificationIf checked this keeps the last measured value and stops updating the outputs duringthe calibration or verification process. This avoids sending invalid information to anyconnected device. At the end of a calibration, this hold remains on for a further10 minutes to allow the system to stabilize.Zero calibrationbottleMake sure this is disabled by unchecking the box as it is not relevant for this sensor.Stop parameters If this button is pressed you can view or change the existing values or restore thedefault values. It is highly recommended to leave these parameters at their defaultvalues. These values apply to manual calibrations with the Auto-End parameterenabled.Configure manual calibration1. Set the parameters for a manual sensor calibration:Option DescriptionCalibration mode Select Zero calibration or High level adjustment. If using a high range sensor you alsohave the option of 100% humid air calibration.Note: If zero calibration or 100% humid air calibration is selected, no other parametersare required. The following are only required for high level adjustment.Cal. sample Set to In line sample, Gas bottle or Factory parameters. If factory parameters isselected, the Ksv value is displayed but can be changed.These additional parameters are required if in line sample or gas bottle has beenselected as the calibration sample:Medium This is automatically set to Liquid if in line sample has been selected as the calibrationsample, or Gas if gas bottle has been selected.Gas unit type Either Partial or Dissolved are available for an in line sample. If gas bottle was selectedthis is set to Fraction.Gas unit The list of available units depends on unit type selected above.Liquid This defaults to Water for the K1200 sensor.Reference value Enter the reference value for calibration.Zero calibrationWith this method, the sensor should be removed from the sample and exposed to pure N2 gas. It isrecommended to use the specially designed portable calibration device for this purpose.Press Start to start the calibration.A screen is displayed showing the measured values and length of time the sensor has been undercalibration. These values are continually refreshed.The value % last calibration is an informational message showing the difference between thecurrent and previous sensor calibrations.English 21